Take a look at this Apple document for guidance as to how to maximise the battery power.
My Iphone is died at 40% battery. i charge it 3-4 time a day daily.Moreover,Battery backup is too poor...?
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Take a look at this Apple document for guidance as to how to maximise the battery power.
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Hi
Sounds like you need a battery replacement make an appointment at Apple store For checking.
Or go to Support.apple.com.
Cheers
Brian 🇬-1F1E7;
Battery Troubling